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| HC5523_03 Datasheet, PDF (17/22 Pages) Intersil Corporation – LSSGR/TR57 CO/Loop Carrier SLIC with Low Power Standby | |||
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HC5523
IL = [|VBAT| - 3] / [RL +1800], TA = 25oC
29. Ground Key Detector - (TRIGGER) Increase the input current
to 8mA and verify that DET goes low.
(RESET) Decrease the input current from 17mA to 3mA and
verify that DET goes high.
(Hysteresis) Compare difference between trigger and reset.
30. Power Supply Rejection Ratio - Inject a 100mVRMS signal
(50Hz to 4kHz) on VBAT, VCC and VEE supplies. PSRR is com-
puted using the following equation:
PSRR = 20 ⢠log (VTX/VIN). VTX and VIN are defined in Figure
12.
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